MacBook Air "Core 2 Duo" 1.86 13" (Mid-09) Specs (Mid-2009, MC233LL/A, MacBookAir2,1, A1304, 2334*): EveryMac.com
USED APPLE MacBook Air 2009 (A1304) 13" Intel 2.13 GHz Core 2 Duo 2GB RAM 128SSD | eBay
The MacOS Sierra Compatibility List | OSXDaily
The MacOS Sierra Compatibility List | OSXDaily
MacBook (2006–2012) - Wikipedia
Identify your MacBook model - Apple Support
Identify your MacBook Pro model - Apple Support
macOS High Sierra now available as a free update - Apple
MacBook 6,1 (13-Inch, Late 2009) - Full Information | iGotOffer
Apple MacBook 13” A1342 Late 2009 Core 2 Duo 2.26GHZ, 4GB 250GB, High Sierra | eBay
PSA: macOS Sierra drops support for many Macs from 2007, 2008, and 2009 | Ars Technica
macOS 10.12 Sierra Unsupported Macs Thread | MacRumors Forums
Identify your MacBook Air model - Apple Support
macOS High Sierra Review | Macworld
Identify your MacBook Pro model - Apple Support
Macs Able to Run macOS Sierra Remain Compatible With High Sierra - MacRumors
Identify your MacBook Air model - Apple Support
macOS Sierra on MacBook late 2009 - YouTube
macOS Sierra: Siri, Apple Pay for the Web, and More, Available Now
macOS High Sierra on MacBook late 2009 White - YouTube
Apple Macbook 13" A1342 Unibody Late 2009 2.26GHz 500GB 4GB 10.13 High Sierra | eBay
Identify your MacBook Air model - Apple Support
macOS Sierra | Low End Mac
Preparing a 2009 MacBook for macOS Sierra - YouTube
